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Poly[?(6)-adipato-diaquadi-?(2)-oxalato-digadolinium(III)].

ABSTRACT: In the centrosymmetric title compound, [Gd(2)(C(6)H(8)O(4))(C(2)O(4))(2)(H(2)O)(2)](n), the Gd(3+) cations are each coordinated by nine O atoms, three from adipate anions, two from oxalate anions and one from an aqua ligand, completing a distorted tricapped trigonal-prismatic geometry. These tricapped trigonal prisms are bridged by the adipate ligands, generating layers lying parallel to (010). The coordination polymer layers are linked into a three-dimensional framework by the rigid oxalate ligands. The adipate and oxalate ions are all located on centers of inversion. A part of the adipate anion is disordered over two positions in a 0.75:0.25 ratio.

SUBMITTER: Li ZF

PROVIDER: S-EPMC2983238 | biostudies-other | 2010

REPOSITORIES: biostudies-other

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Poly[μ(6)-adipato-diaquadi-μ(2)-oxalato-digadolinium(III)].

Li Zhi-Feng ZF Wang Chun-Xiang CX

Acta crystallographica. Section E, Structure reports online 20100915 Pt 10

In the centrosymmetric title compound, [Gd(2)(C(6)H(8)O(4))(C(2)O(4))(2)(H(2)O)(2)](n), the Gd(3+) cations are each coordinated by nine O atoms, three from adipate anions, two from oxalate anions and one from an aqua ligand, completing a distorted tricapped trigonal-prismatic geometry. These tricapped trigonal prisms are bridged by the adipate ligands, generating layers lying parallel to (010). The coordination polymer layers are linked into a three-dimensional framework by the rigid oxalate lig ...[more]

PMID: 21587410

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| S-EPMC3007264 | biostudies-literature

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Project description:The title compound, [Nd(C(8)H(6)NO(4))(C(2)O(4))(H(2)O)](n), is a layer-like coordination polymer. The Nd(III) ion is coordinated by four carboxyl-ate O atoms from three bridging 5-aza-nium-yl-isophthalate (Haip) ligands, four carboxyl-ate O atoms from two oxalate (ox) anions and one ligated water mol-ecule in a tricapped trigonal-prismatic geometry. The Haip anion acts as a ?(3)-bridge, connecting three Nd(III) ions through two carboxyl-ate groups; the ox anion adopts a bis-bidentate-bridging mode, linking two Nd(III) ions. The layer framework is further extended to a three-dimensional supra-molecular structure through N-H?O and O-H?O hydrogen bonds.

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